Ronnie Chen

Teaching

Past courses

Cardinal algebras, Borel fields of structures, and $\ell^2$-Betti numbers
in preparation (2021+)
Borel and analytic sets in locales
preprint (2020) [pdf] [arXiv]
Decompositions and measures on countable Borel equivalence relations
to appear in Ergodic Theory Dynam. Systems (2020) [pdf] [arXiv] [journal]
Bounds on continuous Scott rank (with W. Chan)
Proc. Amer. Math. Soc. (2020) 148(8) (2020) [pdf] [arXiv] [journal]
A universal characterization of standard Borel spaces
submitted (2019) [pdf] [arXiv]
Representing Polish groupoids via metric structures
submitted (2019) [pdf] [arXiv]
Borel functors, interpretations, and strong conceptual completeness for $\mathcal L_{\omega_1\omega}$
Trans. Amer. Math. Soc. 372(12) (2019) [pdf] [arXiv] [journal]
Amalgamable diagram shapes
J. Symb. Logic 84(1) (2019) [pdf] [arXiv] [journal]
Notes on quasi-Polish spaces
preprint (2018) [pdf] [arXiv]
Borel structurability by locally finite simplicial complexes
Proc. Amer. Math. Soc. 146(7) (2018) [pdf] [arXiv] [journal]
Structurable equivalence relations (with A. S. Kechris)
Fund. Math. 242 (2018) [pdf] [arXiv] [journal]
Forbidden submatrices: some new bounds and constructions (with R. P. Anstee)
Electron. J. Combin. 20(1) (2013) [pdf] [journal]